Rear bumper of automobile



FIG. 1 is a perspective view showing the front and top of my invention;

FIG. 2 is a front elevation view of my invention;

FIG. 3 is a rear elevation view of my invention;

FIG. 4 is a left-side elevation view of my invention;

FIG. 5 is a right-side elevation view of my invention;

FIG. 6 is a top plan view of my invention; and,

FIG. 7 is a bottom plan view of my invention. 

The ornamental design for a rear bumper of automobile, substantially as shown and described. 